Fluoborite
氟硼镁石
🗣️ 情景例句
I can organize my time efficiently.
我可以有效地安排时间。
My mouth is watering.
我在流口水。
No, more, about 130 years ago. Most of the slave owners were rich farmers who lived in the south. They wanted to keep their slaves.
不，还要早，大约130年前。大多数奴隶主都是住在南方的富有的农场主。他们想保留自己的奴隶。